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X 3.2.42 Question Blocking refers to the idea that the variability in a variable can be reduced by segmenting the data by some other variable. The data in the accompanying table represent the recumbent length (in centimeters) of a sample of 10 males and 10 females who are 40 months of age Complete parts (a] through (d); Click the icon to view the data table. (a) Determine the standard deviation of recumbent length for all 20 observations. cm (Round to two decimal places as needed.) i More Info X Full data set Males Females 104 0 94.4 102.5 100.8 94.0 97.6 100.0 96.3 98.3 100.6 102.8 105.0 86.2 103.0 98.1 106.5 90.7 100.9 95.4 114.5 Print Done